2004 Gmc Sonoma P0985 Fault Code Check

When you check 2004 Gmc Sonoma car engine light came on code P0985 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However Gmc manufacturer may have a different definition for the P0985 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

P0985 2004 2004 Gmc Sonoma Code Clear

On 1999 and later P0985 2004 2004 Gmc Sonoma engines, the instrument cluster has a built-in self-diagnostic mode that can be accessed by pressing and holding the instrument cluster SELECT/RESET button. Insert the ignition key and turn to the RUN position (but don't crank or start engine). Continue to press and hold the SELECT/RESET button (for 5 seconds) until the word TEST is displayed by the odometer. Release the SELECT/RESET button within three seconds after the word TEST is displayed to begin the self-diagnostic mode.

2004 Gmc Sonoma P0985 OBD-II Diagnostic Powertrain (P) Trouble Code Description

2004 Gmc Sonoma car P0985 OBD-II Trouble Code Shifting from 1st to 5th is performed in combination with ”ON” and ”OFF” operation of the shift solenoid valves SL1, SL2, SL3, S4 and SR which is controlled by the Engine Control Module (

Reason For 2004 Gmc Sonoma P0985 Code

The reason of 2004 Gmc Sonoma P0985 OBD-II Fault Code Check is P0985 Shift Solenoid E Control Circuit Low.
P0985 Code Reason

2004 Gmc Sonoma P0985 Possibble Fix Ways :

A failing oil pump can cause what's called oil starvation, which is almost always fatal to any engine. Overhead cam engines are especially at risk, because the cam and valve train are farther from the pump than they are in pushrod engines. Oil should be of a proper viscosity, which means it needs to be light enough to move quickly.

The rule of P0985 2004 2004 Gmc Sonoma code when it comes to emissions-related vehicle repair is that any modification that changes the vehicle from a certified configuration to a non-certified configuration is considered tampering: this applies to both vehicle owners and repair facilities and is, therefore, a Federal offense. Replacing a catalyst with a straight pipe is one traditional example of P0985. Likewise, overriding the OBD P0985 2004 2004 Gmc Sonoma system through the use of high-tech defeat devices or non-certified computer chips, for example, would also be considered tampering. The OBD system may, however, be repaired back to its original certified configuration with certified performance chips or appropriate aftermarket parts.

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